Machine for forming paving-brick.



Patented Jan. 14,1919.

2 SHEETSSHEET I.

APPLICATION FILED APR. 8. 1916.

MACHINE FOR FORMING PAVING BRICK.

I. G. ADDERSON, R. H. JAMES & B. F. CAKE.

Tm 0 MN Ml \N IN VEN T0 RS file/70m HL/b/Wes WM W.

J. G. ADDERSON. R. H. JAMES & B. F. CAKE.

' MACHINE FOR FORMING PAVING BRICK.

APPLICATION FILED APR. a. 1916.

1,290,862. Patented Jan.14,1919.

2 SHEETS-SHEET 2. I

W BY ATTORNEY ill JAMES GEORGE ADDERSON, RICH H. JAMES, AND BENJAMIN F.CAKE, F SEATTLE, WASHINGTON, ASSIGNORS 1'0 DENNY-BENTON CLAY & COALCOMPANY, OF SEATTLE, WASHINGTON, A CORPORATION OF WASHINGTON. V

MACHINE FOR FORMING PAVING-BRICK.

menses.

Specification of Letters Patent.

Patented den. 1d, 1219.

Application filed April 8, 1916. Serial No. 90,012.

To all whom it may concern:

Be it known that we, JAMEs Gnonen An- DERSON, RICHARD H. dermis, andBENJAMIN F. CAKE, citizens of the United States, residing at Seattle, inthe county of King and State of Washington, have invented certain newand useful Improvements in Machines for Forming PavingBrick, of whichthe followin is a specification.

This invention relates to improvements in machinery for making pavingbrick, and is an improvement on the machine illustrated and described inUnited States application, Serial No. 8 14,5916, filed on June 13, 1914.

One object of this improvement is to pro vide more eficient mechanismfor advancing the brick blocks to the corner leveling and lug-formingtools.

A further object of the invention is to provide a rotary cutter adaptedto cooperate with other ridge-donning tools to form ridges on the sidesof brick blocks.

Still further objects of the invention reside in improvements in theconstruction of the various details embodied in the ma chine.

ill)

The invention consists in the novel construction of devices foradvancing bricks,

and in the adaptation and combination of such devices withcornenbeveling and ridge forming tools, as will be more clearly described in the following specification, illus trated in the accompanyingdrawings and finally pointed out in the appended claims.

1n the accompanying drawings, Figure 1 is a plan view of a brick-formingmachine embodying this invention; Fig. 2 is a view in side elevation ofthe same; Fig. 3 is an enlarged view in crosssection on broken line 3--3of Fig 1; Fig. 4- is an enlarged view in cross-sect1on on broken line Hof Fig,

1, and Fig. 5 is a view in elevation of a dey tail of the invention.

belt or apron 13 at the feed end of the machine, and another endlessdriven carrier belt 1 1 at the discharge end of the machine. The feedbelt 13 passes around a pulley 15 and the upper portion of such beltpasses over a series of idler rollers 16 mounted transversely of themachine near the forward end thereof, certain of such rollers beingpro-- vided with annular ridges or collars 17 that form a medial pivoton which brick blocks 18 may be turned as they pass thereover.

lhe brick blocks 18 are preferably sidecut paving bricks of a type morefully described in the prior specification hereinbefore referred. to,and are formed by cutting the same from a column of clay as it issuesfrom a die. lhebricks are then delivered in spaced side-to-side relationonto the belt T13 crosswise thereof, and are carried forv ward therebyover the annular ribs. 17, one

end of each brick-block 18 engaging the rounded end 20 of a guide plate21 whereby all of the brick blocks are turned lengthwise of the machine,and are caused to proceed in end-to-end relation between the guiderail21 and a driven belt 22 that passes over pulleys 23, 24 and 25, and isdriven at a slightly higher speed than the belt 13. The rounded end 20of the guide-plate 21 is supported by bracket 19, see Figs. 1 and 2.

The guide-plate 21 is supported from the frame member 10 by adjustablysecured brackets 26 and the inner end of such guideplate is yieldinglyheld in contact with the brick-blocks 18 by a compression spring 27disposed in a bolt 28 whose head is engaged within a clip 30 onthe guideplate 21 and whose outer end passes through. a bracket 31 on the frameand is threaded to receive a wing nut 32 whereby the position of the endof the guide plate 21 may be adjusted.

33 is a backing plate that is adjustably secured to the frame 10 bybrackets 26 and adapted to form a rigid support for'the belt 22 on theside where such belt is in engagement with the moving column of brickblocks 18.

35 is a thin flat metal plate that is secured to the cross loars 12 ofthe frame in such manner that it forms a bridge between the two carrierbelts 13 and 14 over which the brick may pass, the forward end of suchplate preferably being tapered to a thin edge and resting upon the belt13 at the point where such belt passes around the pulley and theoppositeend of such plate resting in a similar manner on the belt 14.

The brick blocks are carried forward on the belt 13 until they aredeposited on the yet reached the plate 35.

36 is a guide plate adjustably secured to the frame by brackets 26 anddisposed substantially in alinement with the belt 22 near the dischargeend of the machine to guide the bricks in the last portion of theirtravel over the plate 35, and 37 is a similar guide plate that ismounted in a similar manner on the opposite side of the machine, one endof the plate 37 being yieldingly supported by a compression spriiig 27and bolt 28 of a form hereinbefore described.

Adjacent to the inner end of the plate 21 is a rotatably mounted cutter38 having two circular blades 40 that are securedbetween plates 41 andare adapted to make two parallel cuts in the sides of a passingbrickblock 18, as more clearly illustrated in Fig. 5, and adjacent thecutter 38 are two ridgeforming tools 42 and 43 carried on brackets 44and 45 that are mounted on, posts 46 and 47, one in front of the otherin such manner that the tools 42 and 43 will successively engage thesides of the moving brickblocks and form a ridge of that portion of thematerial between the cuts made therein by the cutter 38, the tools 42and 43 difi'ering slightly in shape whereby the ridge will bepartlyformed by the first tool and will be finished by the second tool andboth of said tools being of substantially the shape illustrated anddescribed in the prior application hereinbefore referred to.

The brackets 44 and 45 are of substan'- tially bell-crank shape and areprovided on their outer ends with hooks 48 that engage with tensionsprings 50 which are adjust-ably connected with a bracket 51 by hookbolts 52 whereby the ridge-forming tools will be yieldingly held incontact with the moving brick, the brackets being adapted to engage withstops 53 to prevent them from being moved inwardly too far by thesprings 50.

Corner beveling. knives 54 are adjustably secured in holders 55 that arerigidly mounted on posts 56 at each side of the frame and are adapted tomake a shearing inclined out along the upper longitudinal edges of thebrick-blocks, thus forming the beveled corners as more clearlyillustrated in Fig. 3.

After the column of brick-blocks has passed the corner beveling knives54, the ridged side edge thereof is engaged by a roller 57 journaled ona vertical axis 58- in'a pivotally mounted frame 60 and yieldingly heldin contact with the brickblocks 18 by a helical tension spring 61 thatis connected With a fixed bracket 62 by a hook bolt 63, the frame 60being adapted to engage With a stop 64 to limit the inward movement ofthe roller. 2'

The periphery of the roller 57 is formed with a plurality of regularlyspaced vertical grooves 65 into which the ridge material is impressedto'form lugs as the roller passes thereover, that portion of the ridgebetween the lugs being flattened into the plane of the side edge of theblock by the roller.

In operation, the side-cut brick blocks are deposited on the apron 13transversely thereof in spaced relation, and are moved forwardlythereby, the ends of the brick blocks successively engaging the curvedend 20 of the guide plate 21 and the blocks be ing turned thereby intoend-to-end relation and advancedin this manner to the bridge plate 35.When the blocks encounter the end of the plate 35, they will be causedby the friction of the blocks behind and the friction of the belt 22' toslide upon such plate in close end-to-end contact with each other, andwill be successively operated on by the cutter 38, the ridge-formingtools 42 and 43, the beveling knives 54 and the lugforming roller 57,and will then be discharged onto the apron 14 and removed to any desiredpoint.

During the time that the blocks are being operated on by the tools abovereferred to, such blocks are in close end-to-end contact, thuspreventing the tools from breaking of chunks of the soft clay from therear end of the blocks, as would be done if the blocks were spacedapart.

Having described our invention, What we claim, is-

1. A machine for forming brick blocks comprising an endless driven feedapron, an endless driven discharge apron spaced from said feed apron, aplate extending between said two aprons, a spring-pressed guide-plate,and an endless moving belt opposed to said guide-plate and coacting withsaid feed apron to frictionally engage brick blocks and cause them to beslidably moved on said first named plate.

2. A machine for forming brick blocks comprising an endless driven feedapron, a plate having one end disposed in close proxunity to said feedapron and adapted'to receive brick blocks from said feed apron, a springpressed guide-plate, and an endless moving belt opposed to saidguideplate to frictionally engage brick blocks and coact with said apronin moving said brick blocks on said first named plate.

. 3. A machine of the class described, comprising a carrier belt forbrick blocks, a

plate disposed in alinement with said carrier belt and adapted toreceive brick blocks therefrom, 'a secondary belt disposed at one sideof said carrier belt and said plate, and means yieldingly urged towardthe secondary belt forholding brick blocks in engagement with saidsecondary belt whereby said secondary belt will coact with said carrierbelt to slidably advance said brick blocks on said plate.

4. A machine for forming brick blocks including an endless driven feedapron movable in a horizontal plane, an endless driven discharge apronspaced from the end of said feed apron and movable in the same directionin the same plane therewith, a

.fixed plate extending between said two aprons over which brick blocksmay be slidably transferred from said feed apron to said dischargeapron, a guide plate at 20 one side of said plate and abelt dis osed ina vertical plane at the opposite si e of said plate and coacting withsaid feed apron to advance brick blocks.

Signed at Renton, Washington, this 24th 25 day of March 1916.

JAMES GEORGE ADDERSON.

RICHARD H. JAMES. BENJAMIN F. CAKE. Witnesses:

LILLIAN A. HANSEN, G. M. CONARD.

